Showing posts with label supreme instruments. Show all posts
Showing posts with label supreme instruments. Show all posts

Thursday, July 16, 2020

1936 Supreme Instruments Radio Tester 550 Deluxe

It pays to have friends that recognize quality when they see it. This is a 1936 Supreme Instruments 550 Deluxe tester. It should be easy to get going. The hard part will be using it...